US4523365A - Method of manufacturing bearing blocks - Google Patents

Method of manufacturing bearing blocks Download PDF

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Publication number
US4523365A
US4523365A US06/404,866 US40486682A US4523365A US 4523365 A US4523365 A US 4523365A US 40486682 A US40486682 A US 40486682A US 4523365 A US4523365 A US 4523365A
Authority
US
United States
Prior art keywords
bush
flange
block
light alloy
cylindrical portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/404,866
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English (en)
Inventor
Anthony J. C. Richmond
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
Assigned to LUCAS INDUSTRIES, A BRITISH COMPANY reassignment LUCAS INDUSTRIES, A BRITISH COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: RICHMOND, ANTHONY J. C.
Application granted granted Critical
Publication of US4523365A publication Critical patent/US4523365A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/02—Mechanical treatment, e.g. finishing
    • F16C2223/08—Mechanical treatment, e.g. finishing shot-peening, blasting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/42—Coating surfaces by spraying the coating material, e.g. plasma spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/70—Coating surfaces by electroplating or electrolytic coating, e.g. anodising, galvanising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49696—Mounting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49705—Coating or casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y10T29/49986—Subsequent to metal working

Definitions

  • This invention relates to a method of manufacturing bearing blocks for rotatable members, and in particular to a method of manufacturing such blocks for use in gear pumps.
  • the material used for the bushes typically has a lead content of between 27 and 37%. This high lead content is required for bearing properties at higher temperatures, but results in a material which is mechanically weaker than material with a lower lead content.
  • the mechanical weakness of the bush material precludes shrink fitting of the blocks onto the bushes, since the bushes will not support the resultant compressive loads. Moulding or casting light alloy around the bush cannot be effected because the required temperature of 600° C. will melt the lead in the bush.
  • a method of manufacturing a bearing block comprises providing an antifriction alloy bush and flame spraying light alloy around the outer surfaces of the bush until a depth of light alloy is built up to at least the dimensions of the required block.
  • a flame spraying device is moved relatively to said bush so as to direct said light alloy substantially perpendicularly of said outer surface.
  • FIG. 1 is a section through a bearing block at an intermediate stage of its manufacture
  • FIG. 2 is a view of a finished block on arrow 2 in FIG. 1, and
  • FIG. 3 is a section on line 3--3 in FIG. 2.
  • FIG. 1 shows an intermediate stage in the manufacture of a bearing block for a gear pump of the general type described in U.S. Pat. No. 4,233,055 which is incorporated herewith by reference.
  • An antifriction alloy bush 10 has flanges 11, 12 at its respective ends.
  • the bush 10 is of a material commonly referred to as high-lead bronze, and has the following components:
  • the outer surface of the bush 10 includes a cylindrical portion 13 and fillets 14 which extend from the portion 13 to the peripheries of the flanges 11, 12.
  • Each of the fillets 14, defines a first frusto-conical surface 15 having an included angle of 120° and extending inwardly from the periphery of the associated flange to a diameter approximately 0.80 of that of the flange periphery.
  • a second frusto-conical surface 16 has an included angle of 60° and intersects the surface 15. The surface 16 blends to the surface 13 by a radius 17.
  • the bush 10 is electroplated externally with nickel up to a depth of 0.05 mm and is subsequently grit blasted to roughen the surface of the nickel coating. A layer of nickel aluminide is then flame sprayed onto the nickel coating to a depth of between 0.075 and 0.150 mm.
  • the bush is mounted in a suitable rig (not shown) for rotation about its axis.
  • the flame spray nozzle, indicated at 18, is mounted on the rig with the nozzle end approximately 65 mm from the circumference of the bush 10.
  • the nozzle 18 is reciprocated angularly about an axis 19 which is approximately 80 mm from the circumference of the bush 10, rotation of the bush 10 and reciprocation of the nozzle 18 being such as to ensure an even distribution of the flame-sprayed material between the flanges 11, 12.
  • a thick aluminium layer, indicated at 20 on the right of FIG. 1, is then flame sprayed over the bush 10 between the flanges 11, 12 using the technique described above, to build up the layer 20 to the peripheries of the flanges 11, 12.
  • the nickel aluminide is of the type available under the designation METCO 404, and the aluminium layer 20 comprises METCO S.F. aluminium, both of these materials being obtainable from METO public limited company, of Chobham, England.
  • Flame spraying is to be understood as any process by which a material is raised to its melting point, atomised and directed as a stream towards a workpiece to produce a coating thereon, and includes plasma spraying in which a powdered material is introduced into a stream of inert gas which has been raised to a temperature of the order of 16500° C. by means of an electric arc.
  • the coated bush is then parted between the lines 21 and the bores 22 of each block are machined to include a recess 23 (FIG. 3) which is located at a zone of the bore 22 against which a gear element of the pump will be urged as a result of a high pressure in the pump outlet.
  • Each block is also machined to provide the required dimensions of the periphery 24, as well as a flat 25 which will engage a corresponding flat on an adjacent block in a pump.
  • each block is machined to provide two relieved zones 27, 28 which will communicate with the respective high pressure and low pressure ports of the pump.
  • a passage 29 is drilled between the relieved zone 28 and the recess 23 in the bore.
  • a cross passage 30 is drilled between the zone 27 and the passage 29.
  • a blanking plug 31 is inserted to isolate the passages 29, 30 from the zone 28. In use the passages 29, 30 thus provide high pressure liquid to the recess 23, and this liquid pressure opposes a load on a gear shaft resulting from high pressure in the pump outlet.
  • the passages 27,30 lie entirely within the bush portion of the bearing block, and are largely accommodated by the fillet 14 of the bush 10. There is therefore no risk that high pressure liquid may enter the interface area between the bush 10 and light alloy coating 20.
  • bearing blocks are axially slidable within a housing of the pump and are subject to considerable forces transversely of their axes.
  • the porosity of a flame sprayed light alloy coating had previously been considered to render such a coating unsuitable for bearing blocks of the type described.
  • bearing blocks manufactured by the method of the present invention are as resistant to wear as blocks having light alloy surrounds which are machined from the solid. This resistance to wear may arise from oxidation of some of the sprayed aluminium, whereby the coatings of the blocks include a proportion of alumina.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Sliding-Contact Bearings (AREA)
US06/404,866 1981-08-05 1982-08-03 Method of manufacturing bearing blocks Expired - Lifetime US4523365A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8123921 1981-08-05
GB8123921 1981-08-05
GB8207634 1982-03-16
GB8207634 1982-03-16

Publications (1)

Publication Number Publication Date
US4523365A true US4523365A (en) 1985-06-18

Family

ID=26280360

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/404,866 Expired - Lifetime US4523365A (en) 1981-08-05 1982-08-03 Method of manufacturing bearing blocks

Country Status (5)

Country Link
US (1) US4523365A (enrdf_load_stackoverflow)
DE (1) DE3229231A1 (enrdf_load_stackoverflow)
FR (1) FR2510926A1 (enrdf_load_stackoverflow)
GB (1) GB2109821B (enrdf_load_stackoverflow)
IT (1) IT1152322B (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521601A1 (en) * 1991-07-05 1993-01-07 Camco International Inc. Aluminide coated bearing elements for roller cutter drill bits
US5228493A (en) * 1990-07-02 1993-07-20 General Electric Company Abrasion method of forming filament reinforced composites
US5456008A (en) * 1993-03-11 1995-10-10 Sarma Process for hard-coating a ball
US5716145A (en) * 1994-04-16 1998-02-10 Bayerische Motoren Werke Aktiengesellschaft Process for fracture separating the bearing cover of a multi-part bearing arrangement, particularly, in crankcases of internal-combustion engines
US5756150A (en) * 1994-06-06 1998-05-26 Toyota Jidosha Kabushiki Kaisha Method of spraying particulate materials on a solid surface materials
WO1999005424A1 (de) * 1997-07-28 1999-02-04 Volkswagen Aktiengesellschaft Pleuel mit einer dünnen gleitlagerschicht
WO1999006723A1 (de) * 1997-07-28 1999-02-11 Volkswagen Aktiengesellschaft Pleuel mit einem verbundlager
EP1267076A2 (en) 2001-06-14 2002-12-18 Lucas Industries Limited Bearing arrangement
US6513238B1 (en) 1997-03-04 2003-02-04 Volkswagen Ag Connecting rod with thermally sprayed bearing layer
US20040244195A1 (en) * 2001-12-06 2004-12-09 Gueldry Gerard Michel Roland Method for making a blade ring
US20070264148A1 (en) * 2005-05-13 2007-11-15 Yates Martin K Gear pump arrangement
US20120272509A1 (en) * 2008-11-18 2012-11-01 Andrew J. Devitt Method of manufacturing large steel rings
WO2017066456A1 (en) * 2015-10-14 2017-04-20 Eaton Corporation Gear pump journal bearing lubrication flow feed
US9631157B2 (en) 2013-10-18 2017-04-25 Weatherford Technology Holdings, Llc Cu—Ni—Sn alloy overlay for bearing surfaces on oilfield equipment
CN108130501A (zh) * 2017-12-14 2018-06-08 中国人民解放军陆军装甲兵学院 一种钢背铜基轴瓦铜涂层的制备方法
EP3453903A1 (en) 2017-09-11 2019-03-13 Rolls-Royce PLC Gear pump bearing
US10294985B2 (en) 2016-08-22 2019-05-21 Rolls-Royce Plc Gear pump bearing
US10330145B2 (en) 2016-08-22 2019-06-25 Rolls-Royce Plc Gear pump bearing
US12247617B2 (en) 2022-12-08 2025-03-11 Hamilton Sundstrand Corporation Cavitation resistant journal bearing
US20250188924A1 (en) * 2023-12-12 2025-06-12 Rolls-Royce Plc Bearing block for a gear pump assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207961B (en) * 1984-07-26 1989-07-05 Daido Metal Co A flanged bush
FR2677712A1 (fr) * 1991-06-12 1992-12-18 Bavouzet Michel Pompe et (ou) moteur hydraulique a engrenage fonctionnant a l'eau a tres hautes permormances.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145460A (en) * 1936-11-28 1939-01-31 United Aircraft Corp Method of forming bearings
US2164737A (en) * 1936-07-24 1939-07-04 Gillord Corp Method of making bearings
US2187755A (en) * 1936-12-11 1940-01-23 United Aircraft Corp Method of forming bearings
US2490543A (en) * 1945-06-27 1949-12-06 Gen Motors Corp Method of making composite stock
US2966423A (en) * 1957-03-18 1960-12-27 Us Rubber Corp Method of producing metal deposits
US3155439A (en) * 1962-06-14 1964-11-03 Chandler Evans Corp Anti-friction bearings and method of constructing same
US3295198A (en) * 1964-03-13 1967-01-03 Robert L Coan Process of adhering stainless steel to aluminum and products produced thereby
US3397732A (en) * 1966-01-03 1968-08-20 Army Usa Method for spray forming of tubular bodies

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH272269A (fr) * 1942-10-29 1950-12-15 Edras Sa Procédé pour l'obtention d'une surface de frottement lisse sur un support métallique.
GB660389A (en) * 1948-12-30 1951-11-07 Cleveland Graphite Bronze Co Bearings
DE1293598B (de) * 1956-06-30 1969-04-24 Bosch Gmbh Robert Zahnradpumpe und Lagerkoerper in der Pumpe
FR2213350B1 (enrdf_load_stackoverflow) * 1972-11-08 1975-04-11 Sfec
GB1431061A (en) * 1973-04-25 1976-04-07 Foseco Int Treatment of molten metals
GB1449162A (en) * 1973-05-25 1976-09-15 Wellworthy Ltd Method for reinforcing pistons

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2164737A (en) * 1936-07-24 1939-07-04 Gillord Corp Method of making bearings
US2145460A (en) * 1936-11-28 1939-01-31 United Aircraft Corp Method of forming bearings
US2187755A (en) * 1936-12-11 1940-01-23 United Aircraft Corp Method of forming bearings
US2490543A (en) * 1945-06-27 1949-12-06 Gen Motors Corp Method of making composite stock
US2966423A (en) * 1957-03-18 1960-12-27 Us Rubber Corp Method of producing metal deposits
US3155439A (en) * 1962-06-14 1964-11-03 Chandler Evans Corp Anti-friction bearings and method of constructing same
US3295198A (en) * 1964-03-13 1967-01-03 Robert L Coan Process of adhering stainless steel to aluminum and products produced thereby
US3397732A (en) * 1966-01-03 1968-08-20 Army Usa Method for spray forming of tubular bodies

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228493A (en) * 1990-07-02 1993-07-20 General Electric Company Abrasion method of forming filament reinforced composites
EP0521601A1 (en) * 1991-07-05 1993-01-07 Camco International Inc. Aluminide coated bearing elements for roller cutter drill bits
US5456008A (en) * 1993-03-11 1995-10-10 Sarma Process for hard-coating a ball
US5716145A (en) * 1994-04-16 1998-02-10 Bayerische Motoren Werke Aktiengesellschaft Process for fracture separating the bearing cover of a multi-part bearing arrangement, particularly, in crankcases of internal-combustion engines
US5756150A (en) * 1994-06-06 1998-05-26 Toyota Jidosha Kabushiki Kaisha Method of spraying particulate materials on a solid surface materials
US6671943B1 (en) 1994-06-06 2004-01-06 Toyota Jidosha Kabushiki Kaisha Method of manufacturing a piston
US6513238B1 (en) 1997-03-04 2003-02-04 Volkswagen Ag Connecting rod with thermally sprayed bearing layer
WO1999005424A1 (de) * 1997-07-28 1999-02-04 Volkswagen Aktiengesellschaft Pleuel mit einer dünnen gleitlagerschicht
WO1999006723A1 (de) * 1997-07-28 1999-02-11 Volkswagen Aktiengesellschaft Pleuel mit einem verbundlager
EP1267076A2 (en) 2001-06-14 2002-12-18 Lucas Industries Limited Bearing arrangement
US6716010B2 (en) 2001-06-14 2004-04-06 Mark Stephen Eaton Bearing arrangement
US20040244195A1 (en) * 2001-12-06 2004-12-09 Gueldry Gerard Michel Roland Method for making a blade ring
US7607906B2 (en) 2005-05-13 2009-10-27 Goodrich Control Systems Limited Gear pump arrangement with erosion resistant insert
US20070264148A1 (en) * 2005-05-13 2007-11-15 Yates Martin K Gear pump arrangement
EP1722103A3 (en) * 2005-05-13 2008-07-23 Goodrich Control Systems Ltd Gear pump with bearings
US20120272509A1 (en) * 2008-11-18 2012-11-01 Andrew J. Devitt Method of manufacturing large steel rings
US8943688B2 (en) * 2008-11-18 2015-02-03 Andrew J. Devitt Method of manufacturing large steel rings
US9598758B2 (en) 2008-11-18 2017-03-21 American Offshore Energy Vertical axis wind turbine
US9631157B2 (en) 2013-10-18 2017-04-25 Weatherford Technology Holdings, Llc Cu—Ni—Sn alloy overlay for bearing surfaces on oilfield equipment
GB2558152A (en) * 2015-10-14 2018-07-04 Eaton Intelligent Power Ltd Gear pump journal bearing lubrication flow feed
WO2017066456A1 (en) * 2015-10-14 2017-04-20 Eaton Corporation Gear pump journal bearing lubrication flow feed
GB2558152B (en) * 2015-10-14 2021-07-07 Eaton Intelligent Power Ltd Gear pump journal bearing lubrication flow feed
US11060560B2 (en) 2015-10-14 2021-07-13 Eaton Intelligent Power Limited Gear pump journal bearing lubrication flow feed
US10294985B2 (en) 2016-08-22 2019-05-21 Rolls-Royce Plc Gear pump bearing
US10330145B2 (en) 2016-08-22 2019-06-25 Rolls-Royce Plc Gear pump bearing
EP3453903A1 (en) 2017-09-11 2019-03-13 Rolls-Royce PLC Gear pump bearing
US10578160B2 (en) 2017-09-11 2020-03-03 Rolls-Royce Plc Gear pump bearing
CN108130501A (zh) * 2017-12-14 2018-06-08 中国人民解放军陆军装甲兵学院 一种钢背铜基轴瓦铜涂层的制备方法
CN108130501B (zh) * 2017-12-14 2020-02-21 中国人民解放军陆军装甲兵学院 一种钢背铜基轴瓦铜涂层的制备方法
US12247617B2 (en) 2022-12-08 2025-03-11 Hamilton Sundstrand Corporation Cavitation resistant journal bearing
US20250188924A1 (en) * 2023-12-12 2025-06-12 Rolls-Royce Plc Bearing block for a gear pump assembly

Also Published As

Publication number Publication date
DE3229231C2 (enrdf_load_stackoverflow) 1990-11-22
FR2510926A1 (fr) 1983-02-11
IT8222733A0 (it) 1982-08-04
GB2109821B (en) 1985-08-14
DE3229231A1 (de) 1983-02-17
GB2109821A (en) 1983-06-08
IT1152322B (it) 1986-12-31
FR2510926B1 (enrdf_load_stackoverflow) 1985-03-15

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